yes, exactly what I did once I knew the name! Thanks for the responses, I'd heard of it but wasn't aware of the pusher propeller.
http://www.youtube.com/watch?v=XE0CrIup6Uc

Now I'm really curious about how it dealt with retreating blade stall at it's top speed....

Apache Never exceed speed: 197 knots (227 mph, 365 km/h) (according to Wikipedia)
AH-56_Cheyenne in a dive achieved 245 knots (282 mph, 454 km/h) and demonstrated improved maneuverability at high speeds. (according to Wikipedia)
According to the video, a top speed of 240MPH

Fast heli's get pretty funky with their flight handling....